503122045321 has 8 divisors (see below), whose sum is σ = 581457260160. Its totient is φ = 426401989728.

The previous prime is 503122045313. The next prime is 503122045337. The reversal of 503122045321 is 123540221305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 503122045321 - 2³ = 503122045313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 503122045321.

It is not an unprimeable number, because it can be changed into a prime (503122045381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403789141 + ... + 403790386.

It is an arithmetic number, because the mean of its divisors is an integer number (72682157520).

Almost surely, 2^503122045321 is an apocalyptic number.

It is an amenable number.

503122045321 is a deficient number, since it is larger than the sum of its proper divisors (78335214839).

503122045321 is an equidigital number, since it uses as much as digits as its factorization.

503122045321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807579623.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 503122045321 its reverse (123540221305), we get a palindrome (626662266626).

The spelling of 503122045321 in words is "five hundred three billion, one hundred twenty-two million, forty-five thousand, three hundred twenty-one".